Who in the rainbow can draw the line where the violet tint ends and the orange tint begins? Distinctly we see the difference of the colors, but where exactly does the one first blendingly enter into the other? So with sanity and insanity.  —Herman Melville, Billy Budd The science-fiction writer Ray Bradbury once said, “Shakespeare wrote Moby-Dick, using Melville as a ouija board.” Moby-Dick wasn’t successful when Melville published it in 1851 to mixed reviews. By the time he died in 1891 it had gone out of print. It was rediscovered in the early twentieth century, and became a classic. Herman…